| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| * Class UnaryExpressionEvaluator |
| * @author Jeka |
| */ |
| package com.intellij.debugger.engine.evaluation.expression; |
| |
| import com.intellij.debugger.DebuggerBundle; |
| import com.intellij.debugger.engine.evaluation.EvaluateException; |
| import com.intellij.debugger.engine.evaluation.EvaluateExceptionUtil; |
| import com.intellij.debugger.engine.evaluation.EvaluationContextImpl; |
| import com.intellij.debugger.impl.DebuggerUtilsEx; |
| import com.intellij.debugger.jdi.VirtualMachineProxyImpl; |
| import com.intellij.psi.JavaTokenType; |
| import com.intellij.psi.tree.IElementType; |
| import com.sun.jdi.BooleanValue; |
| import com.sun.jdi.PrimitiveValue; |
| import com.sun.jdi.Value; |
| |
| class UnaryExpressionEvaluator implements Evaluator { |
| private final IElementType myOperationType; |
| private final String myExpectedType; |
| private final Evaluator myOperandEvaluator; |
| private final String myOperationText; |
| |
| public UnaryExpressionEvaluator(IElementType operationType, String expectedType, Evaluator operandEvaluator, final String operationText) { |
| myOperationType = operationType; |
| myExpectedType = expectedType; |
| myOperandEvaluator = operandEvaluator; |
| myOperationText = operationText; |
| } |
| |
| public Modifier getModifier() { |
| return null; |
| } |
| |
| public Object evaluate(EvaluationContextImpl context) throws EvaluateException { |
| Value operand = (Value)myOperandEvaluator.evaluate(context); |
| VirtualMachineProxyImpl vm = context.getDebugProcess().getVirtualMachineProxy(); |
| if (myOperationType == JavaTokenType.PLUS) { |
| if (DebuggerUtilsEx.isNumeric(operand)) { |
| return operand; |
| } |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.numeric.expected")); |
| } |
| else if (myOperationType == JavaTokenType.MINUS) { |
| if (DebuggerUtilsEx.isInteger(operand)) { |
| long v = ((PrimitiveValue)operand).longValue(); |
| return DebuggerUtilsEx.createValue(vm, myExpectedType, -v); |
| } |
| if (DebuggerUtilsEx.isNumeric(operand)) { |
| double v = ((PrimitiveValue)operand).doubleValue(); |
| return DebuggerUtilsEx.createValue(vm, myExpectedType, -v); |
| } |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.numeric.expected")); |
| } |
| else if (myOperationType == JavaTokenType.TILDE) { |
| if (DebuggerUtilsEx.isInteger(operand)) { |
| long v = ((PrimitiveValue)operand).longValue(); |
| return DebuggerUtilsEx.createValue(vm, myExpectedType, ~v); |
| } |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.integer.expected")); |
| } |
| else if (myOperationType == JavaTokenType.EXCL) { |
| if (operand instanceof BooleanValue) { |
| boolean v = ((BooleanValue)operand).booleanValue(); |
| return DebuggerUtilsEx.createValue(vm, myExpectedType, !v); |
| } |
| throw EvaluateExceptionUtil.createEvaluateException(DebuggerBundle.message("evaluation.error.boolean.expected")); |
| } |
| |
| throw EvaluateExceptionUtil.createEvaluateException( |
| DebuggerBundle.message("evaluation.error.operation.not.supported", myOperationText) |
| ); |
| } |
| } |